【java工具类】java做的一个xml转Excel工具，基于maven工程

说明：适合数据库导出为xml时转成Excel

本工具将上传至GitHub：https://github.com/xiaostudy/xiaostudyAPI3

doc4j的maven依赖

<!--xml解析的dom4j-->
        <!-- https://mvnrepository.com/artifact/dom4j/dom4j -->
        <dependency>
            <groupId>dom4j</groupId>
            <artifactId>dom4j</artifactId>
            <version>1.6.1</version>
        </dependency>

主要代码

package com.xiaostudy.util;

import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;

import java.io.File;
import java.util.ArrayList;
import java.util.List;

/**
 * XML工具类
 * @author xiaostudy
 * @date 2019.4.26
 * @version 1.0.0
 */
public class XmlUtil {

    public static void main(String[] args) {
        Boolean aBoolean = Xml2ExcelFile("C:\Users\Administrator\Desktop\test.xml", "C:\Users\Administrator\Desktop\test2.xlsx");
        System.out.println(aBoolean);
    }

    /**
     * Xml转Excel文件
     * @param strXmlFilePath Xml文件路径
     * @param strExcleFilePath Excel文件存放路径
     * @return
     */
    public static Boolean Xml2ExcelFile(String strXmlFilePath, String strExcleFilePath) {
        if(StringUtil.isTrimNull(strXmlFilePath) || StringUtil.isTrimNull(strExcleFilePath)) {
            return false;
        }

        List<List<String>> listList = readXml(strXmlFilePath);
        if(null == listList || listList.isEmpty()) {
            return false;
        }

        return ExcelUtil.createExcelFile(strExcleFilePath, listList);
    }

    /**
     * 读取Xml文件，以List<List<String>>形式返回
     * @param strFile
     * @return
     */
    public static List<List<String>> readXml(String strFile) {
        if(StringUtil.isTrimNull(strFile)) {
            return null;
        }

        SAXReader reader = new SAXReader();
        File file = new File(strFile);
        if(!file.exists() || !file.isFile()) {
            return null;
        }

        Document document = null;
        try {
            document = reader.read(file);
        } catch (DocumentException e) {
            e.printStackTrace();
        }
        List<List<String>> listList = new ArrayList<>();

        if (null != document) {
            Element root = document.getRootElement();
            List<Element> childElements = root.elements();
            List<String> titleList = new ArrayList<>();
            listList.add(titleList);
            boolean flag = true;
            for (Element child : childElements) {
                List<String> list = new ArrayList<>();

                List<Element> elementList = child.elements();
                for (Element ele : elementList) {
                    if(flag) {
                        titleList.add(ele.getName());
                    }
                    list.add(ele.getText());
                }
                flag = false;

                listList.add(list);

                System.out.println();
            }
        }

        return listList;
    }
}

依赖的工具类GitHub上有https://github.com/xiaostudy/xiaostudyAPI3

StringUtil.isTrimNull

public static boolean isTrimNull(Object obj) {
        if (null != obj) {
            return isNull(obj.toString().trim());
        } else {
            return true;
        }
    }

Excel.createExcelFile

public static <T> Boolean createExcelFile(String fileName, List<List<T>> list) {
        logger.debug(">>>>>" + CLASSNAME + ".createExcelFile()...");
        logger.debug("fileName: " + fileName);
        logger.debug("list: " + list);

        FileOutputStream fileOut = null;
        try {
            if(StringUtil.isTrimNull(fileName)) {
                return false;
            }

            File file = new File(fileName);
            if(file.exists()) {
                System.out.println("文件已存在！");
                logger.debug("文件已存在！");
                return false;
            }

            Workbook workbook = null;
            String excelType = null;
            if(FileUtil.isFileNameEndsWith(fileName, ".xls")) {
                excelType = "xls";
                workbook = new HSSFWorkbook();
            } else if(FileUtil.isFileNameEndsWith(fileName, ".xlsx")) {
                excelType = "xlsx";
                workbook = new XSSFWorkbook();
            } else {
                return false;
            }

            fileOut = new FileOutputStream(fileName);
            workbook.write(fileOut);
            fileOut.close();

            FileInputStream is = new FileInputStream(file);
            if("xls".equals(excelType)) {
                POIFSFileSystem fs = new POIFSFileSystem(is);
                workbook = new HSSFWorkbook(fs);
            } else if("xlsx".equals(excelType)) {
                workbook = new XSSFWorkbook(is);
            }

            Sheet sheet = workbook.createSheet();
            sheet = setSheetValue(sheet , list);

            fileOut = new FileOutputStream(fileName);
            workbook.write(fileOut);
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if(fileOut != null) {
                try {
                    fileOut.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            logger.debug("<<<<<" + CLASSNAME + ".createExcelFile().");
            return true;
        }
    }